Home / 628,665,630.21-867,519,479.71-346,392,274.71

Finding the Fourth Proportional to 628,665,630.21, 867,519,479.71 and 346,392,274.71

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Solution

The fourth proportional to 628,665,630.21, 867,519,479.71 and 346,392,274.71 is: 477,999,800.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,665,630.21 : 867,519,479.71 = 346,392,274.71 : x
  2. Step 2: Convert to fraction form
    628,665,630.21/867,519,479.71 = 346,392,274.71/x
  3. Step 3: Cross multiply
    628,665,630.21x = 867,519,479.71 × 346,392,274.71
  4. Step 4: Simplify right side
    628,665,630.21x = 300,502,045,930,679,744
  5. Step 5: Solve for x
    x = 300,502,045,930,679,744/628,665,630.21
  6. Step 6: Final answer
    x = 477,999,800.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.